Preparation method of Chinese herbal extract, prepared Chinese herbal extract and application

Abstract

The invention provides a preparation method of a Chinese herbal extract and the prepared Chinese herbal extract. Active pharmaceutical ingredients of the Chinese herbal extract comprise, by weight, 30-60 parts of Radix Astragali, 9-15 parts of ligustrum lucidum, 9-30 parts of motherwort, 3-10 parts of dark plum, 2-9 parts of coptis, 1-5 parts of cortex cinnamomi and 3-9 parts of Buddleja officinalis. The preparation method comprises the following steps: extracting volatile oil from cortex cinnamomi, and carrying out clathration on the volatile oil with beta-cyclodextrin; extracting cortex cinnamomi herbal residue and other medicinal materials with 30%-80% (by volume) of an ethanol solution; and refining an extract by passing through macroporous resin and drying to obtain a dry extract powder, adding a volatile oil clathrate, and uniformly mixing. By the preparation method, active material content and pharmacological action of the Chinese herbal extract are boosted remarkably.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine, and in particular relates to a preparation method of a traditional Chinese medicine extract for diabetic retinopathy, the prepared traditional Chinese medicine extract and its application. Background technique [0002] Diabetic Retinopathy (DR) is one of the serious and common eye complications of diabetes. With the prolongation of the duration of diabetes, the incidence of DR also increased. The incidence of diabetic retinopathy is about 50% in those with a course of more than 8 years. The early symptoms of the disease are not obvious and are easy to be ignored. In the late stage, there is no effective control method, and the disease is lingering and intractable. If the disease is not treated, the consequences are serious, and it is the main cause of adult blindness, with a blinding rate of 8-12%, which has a serious adverse effect on the quality of life of the affected population. ...

AI Technical Summary

Problems solved by technology

[0006] The above method is only a simple preparation method of traditional Chinese medicine decoction, and does not consider how to fully extract the active ingredients in the medicine, which causes a serious waste of medicinal material resources, but the medicinal effect is not significant; at the same time, the water decoction brings a large dosage and poor taste , inconvenient to carry, not suitable for long-term storage

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